Siemens Aktiengesellschaft

Siemens Enterprise Communications Gmbh & Co. Kg

Unify Gmbh Co. Kg

Siemens Schweiz Ag

Michael Bahr

Rainer Falk

Parag Sudhir Mogre

Norbert Vicari

Thomas Gamer

Christian Schwingenschlögl

Matthias Roth

Joachim Walewski

Siegfried Richter

Frank Lahner

Matthias Kutschenreuter

Jan Husak

Jörg Romahn

Peter Schwalbach

Oskar Camenzind

Dirk Staehle

Barbara Staehle

Andrea Buttu

Lars Völker

Marian Baran

Parag Mogre

Lars VÖLKER

Albert Weber

A method and a network node device run Push-Button Configuration sessions within a heterogeneous network, IEEE 1905.1, using a push button configuration mechanism that ensures that only one single new network node device is registered for a single push button key press event and thus overlapping Push-Button Configuration sessions within a heterogeneous network are prevented. After finishing the push button configuration mode, the number of new nodes is checked. If more than one node has been added, a configuration roll-back is performed. Preferably, the push button configuration roll-back is performed as soon as the authentication of more than one distinct node has been detected. The roll-back includes the deletion or deactivation of credentials established by the push-button configuration.

Method and device for running push-button configuration sessions

A method and network node device are provided for controlling an execution of technology specific Push-Button Configuration sessions within a heterogeneous or homogeneous wireless network, as well as a heterogeneous or homogeneous wireless network for detecting a session overlap within the network, whereby the session is related to a configuration session (bootstrapping session, setup session) that establishes a security configuration for encrypted communication over a wireless link. The method and device utilizes an enhanced mechanism for controlling the execution of technology specific Push Button Configuration sessions within a heterogeneous or homogeneous wireless network and a plurality of network node devices interconnected to each other via at least one interface and/or over multiple hops and authenticated or unauthenticated for the network by using a piece of information, e.g. a 'Configuration Setup Session Identifier (CSSID)', for identifying a technology specific Push Button Configuration setup session.

Method and network node device for controlling the run of technology specific push-button configuration sessions within a heterogeneous or homogeneous wireless network and heterogeneous or homogeneous wireless network

A key distributer node for a network includes a memory device with at least one first key, at least one data communication device that can exchange data with first and second access nodes for a terminal integrated wirelessly into the network, at least one processor connected to the memory device and the data communication device, wherein functions are provided for the processor(s) that allow authentication of the terminal at the second access node in response to a key request received by the second access node, a derivation of a second key from the first key, and triggered transmission of the second key through the data communication device to the second access node. Connections to the network's first and second access nodes with security relationships can be provided for the key distributor node when using the first key.

Methods and devices having a key distributor function for improving the speed and quality of a handover

Methods and devices for handling an extended proxy information item, wherein a proxy information sequence number associated to the extended proxy information item is used to avoid misinterpretations of outdated messages with proxy information items.

Methods and devices for handling an extended proxy information item

A heterogeneous home network (with possibly multiple hops between devices) uses a push button configuration mechanism that ensures only one single new network node device is registered for a single push button key press event and overlapping Push-Button Configuration sessions within the heterogeneous network are prevented by an enhanced mechanism for running Push Button Configuration sessions based on a Push-Button Configuration handshake procedure triggered and initiated by a virtual or physical Push-Button-Event on a new device, which wants to join the heterogeneous network for a user friendly security bootstrapping, in which multiple network node devices in the heterogeneous network belonging already to the heterogeneous network are involved in registering the new device. The Push-Button Configuration handshake procedure is initiated to get a permission information to join the network or to proceed with the Push-Button Configuration or to get a rejection information not to join the network.

Method and network node device for running push-button configuration sessions within heterogeneous network and heterogeneous network

Method and devices for running push-button configuration sessions

A congestion notification element for indicating a congestion status of a mesh node may include at least one field specifying a mesh destination for which an intra-mesh congestion control is to be applied. This may allow for forwarding data frames on paths that share some links but not the bottleneck link with a path that is congestion controlled, which has not been possible with currently specified congestion notification techniques.

Congestion notification element and method for congestion control

A key distributor node for a network includes a memory device with at least one first key, at least one data communication device that can exchange data with first and second access nodes for a terminal integrated wirelessly into the network, at least one processor connected to the memory device and the data communication device, wherein functions are provided for the processor(s) that allow authentication of the terminal at the second access node in response to a key request received by the second access node, a derivation of a second key from the first key, and triggered transmission of the second key through the data communication device to the second access node. Connections to the network's first and second access nodes with security relationships can be provided for the key distributor node when using the first key.

In an ad hoc mesh network, roles are assignment to the different network nodes, for example mesh point or mesh portal. The invention envisages that a network node identifies the certification and thus the permitted roles of another network node before it sends a message to said other network node. This ensures that the roles maintain their integrity and the security in the network is enhanced.

Method for identifying a task authorization

Overlapping Push Button Configuration (PBC) sessions are prevented without any deadlocks of technology specific PBC methods by controlling the run of technology specific PBC sessions within a heterogeneous network of network node devices interconnected via at least one I interface and/or over multiple hops and authenticated for the network, by enabling a two-level PBC within the heterogeneous network based on a network node device of the network node devices being authenticated for the network as registrar, which is especially selectable or determined. Level-of the two-level PBC performed at the abstraction layer of the heterogeneous network accomplishes the detection of the wish for PBC, prevention of overlapping PBC sessions independent of underlying communication technology, coordination of technology-specific PBC runs, whereas in level-of the two-level PBC performed within a technology-specific communication technology a technology-specific PBC is used, which is triggered by the level-

Method and devices for running technology specific push-button configuration sessions

A method routes data packets especially in wireless communication network formed by a plurality of network nodes. In order to transmit data packets from a first network node acting as a data packet source to a second network node acting as a data packet sink according to said method, the data packets are transmitted with the help of at least one additional communication network node that is dissociated from the source node, a first network message is transmitted from the source node at least to the additional network node so as to be successively forwarded to each additional network node until the additional network node corresponds to the sink node, the respective additional network node supplies routing data based on the first message in such a way that first data on a next network node on the way to the source node and the value of a first validity period in the actual additional network node is temporarily stored, and the value of the respective validity period is stored in such a way that all first data remains stored at least until a second network message which is sent by the sink node and confirms the first network message has been received by the source node.

Method and network node for routing data packets in communication networks

A method and network node device control the run of technology specific Push-Button Configuration sessions within a heterogeneous or homogeneous wireless network as well as a heterogeneous or homogeneous wireless network detecting a session overlap within the network. The session is related to a configuration session (bootstrapping session, setup session) that establishes a security configuration for encrypted communication over a wireless link it is proposed an enhanced mechanism for controlling the run of technology specific Push Button Configuration sessions within a heterogeneous or homogeneous wireless network and a plurality of network node devices interconnected to each other via at least one interface and/or over multiple hops and authenticated or unauthenticated for the network by using a piece of information, e.g. a 'Configuration Setup Session Identifier (CSSID),' for identifying a technology specific Push Button Configuration setup session.

Method and network node device for controlling the run of technology specific push-button configuration sessions within a heterogeneous or homogenous wireless network and heterogeneous or homogenous wireless network

A method is disclosed for advertising channel reservations by an advertisement in a wireless mesh network, the advertisement being adapted for at least partially advertising channel reservations known by a transmitting node. The method includes: mapping at least one channel reservation to an advertisement element identifier, the advertisement element identifier identifying an advertisement element; considering said advertisement element to contain a set of channel reservations assigned to said advertisement identification number; and advertising said reservation by transmitting said advertisement element characterized by said advertisement element identifier.

Method for advertising channel reservations

According to the known IEEE 802.11s Draft Standard for WLAN Mesh Networking, version D5.0, the size of an information element is restricted to a length of 255 octets. Due to the definition of an MCCAOP advertisements element as a general information element this restriction is a major drawback leading to a maximum of 62 MCCA reservations to be advertised by an MCCAOP advertisements element. Although this number of reservations might be sufficient in the majority of situations, it is easily imaginable that there are situations which could require an advertisement exceeding this limit of 62 MCCA reservations. According to the disclosure, an MCCAOP advertisement&#x2014;which is a set of MCCAOP reservations that needs to be advertised&#x2014;is split over multiple MCCAOP advertisements elements. This may advantageously allow advertising more than 62 MCCAOP reservations to neighboring mesh nodes in a wireless mesh network which is configured to use MCCA.

Growing community of inventors

Munich, Germany

Michael Bahr